High Strength Magnesia Alumina Spinel Refractory Castables
USD $380 - $700 /Ton
Min.Order:1 Ton
Henan Xinhongji Refractory Material Co. Ltd.
Magnesia Alumina Spinel Refractory Castable
Introduction:
Magnesia Alumina Spinel Castable (also called Magnesium Aluminate Spinel Castable), Refractories containing magnesia aluminate spinel (MgAl2O4) are materials for emerging technology in several applications like cement and steelmaking processes. The development of a self-forming spinel castable without any synthetic spinel grains appears to be promissory for optimum refractory linings.
Refractories containing magnesium aluminate spinel are becoming increasingly popular due to their exceptional behavior in several applications. Actually, spinel refractories have been successfully applied in aluminum, glass, lime and cement process vessels and also in steelmaking ladles. magnesia-spinel materials are generally used in the transition zones of the cement kilns also.
The magnesia aluminum spinel castable is prepared from high-purity materials, which has good corrosion resistance, thermal shock stability. Magnesia aluminum spinel refractory castables have a few anti-flaking properties. And which is the finest advanced refractory material.
Physical & Technical Index
ltem | XHJMAC70 | XHJMAC75 | XHJMAC82 | XHJMAC85 | XHJMAC90 | |
AL2O3(%) | 70 | 75 | 82 | 85 | 90 | |
MgO(%) | 25 | 20 | 11 | 12 | 8 | |
SiO2 (%) | 3 | 2 | 1 | 1 | 1 | |
Bulk density | (g/cm³) | 2.60 | 2.65 | 2.75 | 2.95 | 3.00 |
Thermal Shock Stability | 1000℃, water,quencing,cycle | 70 | 80 | 100 | 110 | 120 |
Cold crushing strength | (MPa) 110℃*24H | 40 | 40 | 45 | 45 | 50 |
Modulus of Rupture | (MPa) 110℃*24H | 5.5 | 5.5 | 5.5 | 5.5 | 6.0 |
Heating permanent line change, % | Test temperature×3h | -0.5~+1.5 | -0.5~+1.8 | -0.2~+1.8 | -0.2~+1.8 | -0.2~+1.8 |
(1500℃) | (1550℃) | (1550℃) | (1550℃) | (1550℃) | ||
Refractoriness under load | (℃) 0.2MPa | 1650 | 1710 | 1730 | 1770 | 1850 |
Characteristics
l Good strength;
l Good fluidity;
l Appropriate solidification time;
l Save time, fast and convenient;
l High strength, long life,
l Good insulation properties;
l High temperature resistance,
l Corrosion resistance and good thermal shock resistance.
Applications:
l Furnaces of metallurgy industry, heat treatment furnace.
l Furnace of incineration of garbage, recirculating fluidized bed furnace.
l Furnaces of chemical industry and construction industry.
l Cement rotary kiln.
Packing:
l Plastic bag(25kg), Kraft bag (25 kg), Plastic Ton bag(1 ton);
l 1 ton on pallet with plastic film & bundle belts.
l Per your requests